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Weather & Climate in Mường Lay, Vietnam

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Mường Lay enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 58°F in January while summers reach 76°F in July / relatively mild seasonal variation. The area gets 221 sunny days per year, above the national average. Annual precipitation totals 68.8 inches (wetter than the 38-inch national average). The city sits at an elevation of 1,627 feet.

Temperature

58°F Jan (15°C) 76°F Jul (24°C)
Annual Average69.0°F
28% above US avg
January Average58°F (15°C)
July Average76°F (24°C)
Sunny Days221 days/yr

Geography

Elevation1,627 ft (496 m)
Area44.0 sq mi (114.0 km²)
Population Density464/sq mi
Coordinates22.0000°N, 103.1333°W
TimezoneAsia/Ho_Chi_Minh

Precipitation & Snow

Annual Rainfall 68.8"
81% above US avg
Snowfall 0.0"
Wettest Month (Jul) 16.38"
Driest Month (Dec) 0.31"

Air Quality

Earthquake History

41 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.2.

Apr 24, 1995 73 km SSW of Gejiu, China M5.2 85 km 33 km
Feb 19, 2001 31 km W of Dien Bien Phu, Vietnam M4.9 80 km 10 km
Mar 29, 1993 53 km N of Dien Bien Phu, Vietnam M4.6 15 km 33 km
Jul 19, 2014 19 km NNE of S?n La, Vietnam M4.6 104 km 17 km
Mar 4, 2001 10 km WSW of Dien Bien Phu, Vietnam M4.5 74 km 10 km
May 4, 2016 20 km ESE of Gejiu, China M4.5 147 km 16 km
May 16, 2025 27 km S of Mường Lay, Vietnam M4.5 27 km 10 km
Feb 24, 2016 55 km WSW of Sa Pa, Vietnam M4.5 30 km 10 km
Oct 6, 1991 33 km E of S?n La, Vietnam M4.5 133 km 10 km
Apr 30, 2001 97 km WSW of Gejiu, China M4.5 146 km 33 km
Apr 22, 2016 37 km NE of Phôngsali, Laos M4.5 81 km 10 km
May 4, 2016 19 km SE of Gejiu, China M4.5 140 km 15 km
Jun 16, 2020 100 km NNE of Phôngsali, Laos M4.5 76 km 10 km
May 2, 2007 73 km S of Dien Bien Phu, Vietnam M4.5 142 km 10 km
Apr 12, 2002 94 km NE of Phôngsali, Laos M4.5 65 km 10 km
Mar 30, 1993 55 km N of Dien Bien Phu, Vietnam M4.4 14 km 33 km
May 22, 2009 25 km SSE of Phôngsali, Laos M4.4 109 km 10 km
Apr 2, 2001 74 km WSW of Sa Pa, Vietnam M4.4 14 km 33 km
Mar 5, 1991 106 km WSW of Gejiu, China M4.4 147 km 33 km
Sep 19, 1993 52 km NNW of Phôngsali, Laos M4.4 124 km 33 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

1 hurricane (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.

Year Name Category Max Wind Closest
2024 Yagi Category 1 63 mph 288 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 58°F (15°C) 0.4 in Coldest
February 61°F (16°C) 1.7 in
March 67°F (19°C) 1.5 in
April 72°F (22°C) 4.2 in
May 75°F (24°C) 8.3 in
June 76°F (25°C) 12.4 in Warmest
July 76°F (24°C) 16.4 in Wettest
August 75°F (24°C) 14.3 in
September 74°F (23°C) 5.4 in
October 70°F (21°C) 2.9 in
November 64°F (18°C) 1.1 in
December 59°F (15°C) 0.3 in Driest

Mường Lay has a seasonal temperature swing of 18°F / from 58°F in January to 76°F in June. Total annual precipitation is 68.8 inches, with July being the wettest month (16.4") and December the driest (0.3").

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